I’m working on a longer post about why you should “Beware the halo!” when looking at images to use for analyzing historical clothing, but it’s not going to get done tonight. While looking for an illustration for that post, I found a great image on a totally different topic (story of my life!)
Here’s a nice image of two knights jousting. I love this black and white tournament set from:
Freydal, The Book of Jousts and Tournament of Emperor Maximilian I: Combats on Horseback (Jousts)(Volume II): Fürst von Raymundt, Plate 104
c. 1515 National Gallery of Art, USA Rosenwald Collection
1943.3.4511

You can view more of this book, including some hand-to-hand combat scenes at this link
I had the opportunity to see several pages from this book at the MET’s exhibit, The Last Knight: The Art, Armor, and Ambition of Maximilian I. I have since purchased a copy of the book and all I can say is it’s truly spectacular.